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286879872 = 273839001
BaseRepresentation
bin10001000110010…
…111000010000000
3201222211000012110
4101012113002000
51041420123442
644244455320
710052303316
oct2106270200
9658730173
10286879872
11137a33104
12800aa540
1347586006
142a15a0b6
151a2bb69c
hex11197080

286879872 has 64 divisors (see below), whose sum is σ = 771291360. Its totient is φ = 94464000.

The previous prime is 286879867. The next prime is 286879877. The reversal of 286879872 is 278978682.

286879872 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (286879867) and next prime (286879877).

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (286879877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27372 + ... + 36372.

Almost surely, 2286879872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 286879872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385645680).

286879872 is an abundant number, since it is smaller than the sum of its proper divisors (484411488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

286879872 is an equidigital number, since it uses as much as digits as its factorization.

286879872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9101 (or 9089 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 57.

The square root of 286879872 is about 16937.5285092011. The cubic root of 286879872 is about 659.5281843719.

The spelling of 286879872 in words is "two hundred eighty-six million, eight hundred seventy-nine thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 83 96 128 166 192 249 332 384 498 664 996 1328 1992 2656 3984 5312 7968 9001 10624 15936 18002 27003 31872 36004 54006 72008 108012 144016 216024 288032 432048 576064 747083 864096 1152128 1494166 1728192 2241249 2988332 3456384 4482498 5976664 8964996 11953328 17929992 23906656 35859984 47813312 71719968 95626624 143439936 286879872